Treadmill Capable Of Reducing Column Tipping Probability

Abstract

A treadmill capable of reducing column tipping probability includes a treadmill body, a rotatable column provided on both sides of the treadmill body through a rotating shaft, and a locking component for limiting the rotation of the column, wherein the locking component comprises a fixing gear plate and a movable gear plate respectively arranged on opposite sides of the treadmill body and the column, which are meshed with each other after approaching, the rotating shaft is rotatably inserted into the central hole of the fixing gear plate and the movable gear plate, a driving component rotating synchronously with the rotating shaft is fixed at one end of the rotating shaft away from the treadmill body, the driving component can drive the movable gear plate to mesh with or separate from the fixing gear plate as it rotates.

What is claimed is: 
     
         1 . A treadmill capable of reducing column tipping probability, comprising a treadmill body ( 1 ), a rotatable column ( 2 ) provided on both sides of the treadmill body ( 1 ) via a rotating shaft ( 5 ), and a locking component for limiting the rotation of the column ( 2 ) relative to the treadmill body ( 1 ), wherein the locking component comprises a fixing gear plate ( 4 ) fixed to the treadmill body ( 1 ) and a movable gear plate ( 3 ) which can approach or move away from the fixing gear plate ( 4 ) and is respectively provided on the opposite sides of the treadmill body ( 1 ) and the column ( 2 ), a rotating shaft ( 5 ) is rotatably inserted into the central hole ( 6 ) of the fixing gear plate ( 4 ) and the movable gear plate ( 3 ); a driving component is fixed to the end of the rotating shaft ( 5 ) away from the treadmill body ( 1 ), which rotates forward and reversely synchronously with the rotating shaft ( 5 ) and can drive the movable gear plate ( 3 ) to mesh with or move away from the fixing gear plate ( 4 ) along with the forward and reverse rotation,
 wherein a damping component is arranged between the rotating shaft ( 5 ) and the movable gear plate ( 3 ) to increase the rotation resistance of the rotating shaft ( 5 ), and the damping component includes a pressing member elastically arranged on the inner wall of the central hole ( 6 ) of the movable gear plate ( 3 ), and an abutment plane ( 15 ) which can be abutted by the pressing member is arranged on the outer wall of the rotating shaft ( 5 ).   
     
     
         2 . A treadmill capable of reducing column tipping probability according to  claim 1 , wherein the pressing member includes an accommodating hole ( 8 ) provided on the inner wall of the central hole ( 6 ) of the movable gear plate ( 3 ), a ball ( 7 ) telescopically arranged on the accommodating hole ( 8 ), and an elastic member that drives the ball ( 7 ) to elastically press against the abutment plane ( 15 ). 
     
     
         3 . A treadmill capable of reducing column tipping probability according to  claim 2 , wherein the accommodating hole ( 8 ) passes through the outer wall of the movable gear plate ( 3 ), one end of the accommodating hole ( 8 ) close to the outer wall of the movable gear plate ( 3 ) is provided with a pressing member that presses against the elastic member and the ball ( 7 ). 
     
     
         4 . A treadmill capable of reducing column tipping probability according to  claim 3 , wherein the accommodating hole ( 8 ) is provided as a threaded through hole, and the pressing member is a push bolt ( 10 ) matched with the threaded through hole. 
     
     
         5 . A treadmill capable of reducing column tipping probability according to  claim 3 , wherein a blocking component for preventing the ball ( 7 ) detaching from the accommodating hole ( 8 ) is provided at one end of the accommodating hole ( 8 ) close to the rotating shaft ( 5 ). 
     
     
         6 . A treadmill capable of reducing column tipping probability according to  claim 5 , wherein the blocking component comprises a blocking ring ( 11 ) protruding from the accommodating hole ( 8 ) close to one end of the rotating shaft ( 5 ), and the ball ( 7 ) partially passes through the blocking ring ( 11 ) and abuts against the abutment plane ( 15 ). 
     
     
         7 . A treadmill capable of reducing column tipping probability according to  claim 1 , wherein a threaded section ( 14 ) is provided on the end of the rotating shaft ( 5 ) away from the driving component, the threaded section ( 14 ) is threadedly engaged with a locking nut ( 12 ) after passing through the fixing gear plate ( 4 ), and the locking nut ( 12 ) is provided with an anti-drop component for limiting the rotation of the locking nut ( 12 ) relative to the threaded section ( 14 ). 
     
     
         8 . A treadmill capable of reducing column tipping probability according to  claim 7 , wherein the anti-drop component comprises a threaded hole ( 20 ) vertically opened on the outer wall of the locking nut ( 12 ) and a pressing bolt ( 13 ) that cooperates with the threaded hole ( 20 ) and abuts against the threaded section ( 14 ). 
     
     
         9 . A treadmill capable of reducing column tipping probability according to  claim 1 , wherein the driving component comprises a driving handle ( 18 ) located at one end of the movable gear plate ( 3 ) away from the fixing gear plate ( 4 ) and fixedly connected to the rotating shaft ( 5 ), a pressing inclined surface ( 16 ) and a pressing block ( 19 ) are arranged on the opposite side of the driving handle ( 18 ) and the movable gear plate ( 3 ) respectively and are in a mutually abutting state, and a pressing plane ( 17 ) is arranged at one end of the pressing inclined surface ( 16 ) to press against the pressing block ( 19 ) when the movable gear plate ( 3 ) and the fixing gear plate ( 4 ) are meshed. 
     
     
         10 . A treadmill capable of reducing column tipping probability according to  claim 2 , wherein the elastic member is a spring ( 9 ).